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package co.edu.sena.zocode.controlador.servlet;

import co.edu.sena.zocode.modelo.DAO.UsuarioDAO;
import co.edu.sena.zocode.modelo.VO.UsuarioVO;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author SANDRA
 */
public class UsuarioServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {

            String url = request.getRequestURL().toString();

            if (url.contains("iniciarsesion")) {
                inicioSesion(request, response);
            } else if (url.contains("cerrarsesion")) {
                cerrarsesion(request, response);
            }

        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

    private void inicioSesion(HttpServletRequest request, HttpServletResponse response) {
        
        String nusuario = request.getParameter("nusuario");
        String clave = request.getParameter("clave");
        UsuarioDAO dao = new UsuarioDAO();
        UsuarioVO usuario = dao.iniciarSesion(nusuario, clave);
        
        try {
            if (usuario != null) {
                HttpSession sesion = request.getSession();
                sesion.setAttribute("usuario", usuario);
                switch (usuario.getRol().getNombre()) {
                    case "Administrador":
                        response.sendRedirect("Administrador.jsp");
                        break;
                    case "Gerente":
                        response.sendRedirect("Gerente.jsp");
                        break;
                    case "Bodeguero":
                        response.sendRedirect("Bodeguero.jsp");
                        break;
                    case "Contador":
                        response.sendRedirect("Contador.jsp");
                        break;
                }
            } else {
                String resp = "Datos Incorrectos";
                response.sendRedirect("Default.jsp?resp=" + resp);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    private void cerrarsesion(HttpServletRequest request, HttpServletResponse response) throws IOException {
        String mensaje = "Gracias por utilizar nuestros servicios";
        HttpSession sesion = request.getSession();
        sesion.removeAttribute("usuario");
        sesion.invalidate();
        response.sendRedirect("Default.jsp?men=" + mensaje);
    }

}
